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Commit a0aae821 authored by Christian Lamparter's avatar Christian Lamparter Committed by Herbert Xu
Browse files

crypto: crypto4xx - prepare for AEAD support 



This patch enhances existing interfaces and
functions to support AEAD ciphers in the next
patches.

Signed-off-by: default avatarChristian Lamparter <chunkeey@gmail.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 2f77690d

drivers/crypto/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -315,6 +315,10 @@ config CRYPTO_DEV_PPC4XX 
	tristate "Driver AMCC PPC4xx crypto accelerator"

	depends on PPC && 4xx

	select CRYPTO_HASH

	select CRYPTO_AEAD

	select CRYPTO_AES

	select CRYPTO_CCM

	select CRYPTO_GCM

	select CRYPTO_BLKCIPHER

	help

	  This option allows you to have support for AMCC crypto acceleration.

drivers/crypto/amcc/crypto4xx_alg.c

+10 −9
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
#include <crypto/internal/hash.h>

#include <linux/dma-mapping.h>

#include <crypto/algapi.h>

#include <crypto/aead.h>

#include <crypto/aes.h>

#include <crypto/sha.h>

#include <crypto/ctr.h>
@@ -83,7 +84,7 @@ int crypto4xx_encrypt(struct ablkcipher_request *req) 
		crypto4xx_memcpy_to_le32(iv, req->info, ivlen);



	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,

		req->nbytes, iv, ivlen, ctx->sa_out, ctx->sa_len);

		req->nbytes, iv, ivlen, ctx->sa_out, ctx->sa_len, 0);

}



int crypto4xx_decrypt(struct ablkcipher_request *req)
@@ -97,7 +98,7 @@ int crypto4xx_decrypt(struct ablkcipher_request *req) 
		crypto4xx_memcpy_to_le32(iv, req->info, ivlen);



	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,

		req->nbytes, iv, ivlen, ctx->sa_in, ctx->sa_len);

		req->nbytes, iv, ivlen, ctx->sa_in, ctx->sa_len, 0);

}



/**
@@ -213,7 +214,7 @@ int crypto4xx_rfc3686_encrypt(struct ablkcipher_request *req) 


	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,

				  req->nbytes, iv, AES_IV_SIZE,

				  ctx->sa_out, ctx->sa_len);

				  ctx->sa_out, ctx->sa_len, 0);

}



int crypto4xx_rfc3686_decrypt(struct ablkcipher_request *req)
@@ -227,7 +228,7 @@ int crypto4xx_rfc3686_decrypt(struct ablkcipher_request *req) 


	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,

				  req->nbytes, iv, AES_IV_SIZE,

				  ctx->sa_out, ctx->sa_len);

				  ctx->sa_out, ctx->sa_len, 0);

}



/**
@@ -239,11 +240,13 @@ static int crypto4xx_hash_alg_init(struct crypto_tfm *tfm, 
				   unsigned char hm)

{

	struct crypto_alg *alg = tfm->__crt_alg;

	struct crypto4xx_alg *my_alg = crypto_alg_to_crypto4xx_alg(alg);

	struct crypto4xx_alg *my_alg;

	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);

	struct dynamic_sa_hash160 *sa;

	int rc;



	my_alg = container_of(__crypto_ahash_alg(alg), struct crypto4xx_alg,

			      alg.u.hash);

	ctx->dev   = my_alg->dev;



	/* Create SA */
@@ -300,7 +303,7 @@ int crypto4xx_hash_update(struct ahash_request *req) 


	return crypto4xx_build_pd(&req->base, ctx, req->src, &dst,

				  req->nbytes, NULL, 0, ctx->sa_in,

				  ctx->sa_len);

				  ctx->sa_len, 0);

}



int crypto4xx_hash_final(struct ahash_request *req)
@@ -319,7 +322,7 @@ int crypto4xx_hash_digest(struct ahash_request *req) 


	return crypto4xx_build_pd(&req->base, ctx, req->src, &dst,

				  req->nbytes, NULL, 0, ctx->sa_in,

				  ctx->sa_len);

				  ctx->sa_len, 0);

}



/**
@@ -330,5 +333,3 @@ int crypto4xx_sha1_alg_init(struct crypto_tfm *tfm) 
	return crypto4xx_hash_alg_init(tfm, SA_HASH160_LEN, SA_HASH_ALG_SHA1,

				       SA_HASH_MODE_HASH);

}

drivers/crypto/amcc/crypto4xx_core.c

+166 −51
Original line number Diff line number Diff line
@@ -35,10 +35,12 @@ 
#include <asm/dcr.h>

#include <asm/dcr-regs.h>

#include <asm/cacheflush.h>

#include <crypto/aead.h>

#include <crypto/aes.h>

#include <crypto/ctr.h>

#include <crypto/sha.h>

#include <crypto/scatterwalk.h>

#include <crypto/internal/aead.h>

#include <crypto/internal/skcipher.h>

#include "crypto4xx_reg_def.h"

#include "crypto4xx_core.h"
@@ -518,7 +520,7 @@ static void crypto4xx_ret_sg_desc(struct crypto4xx_device *dev, 
	}

}



static u32 crypto4xx_ablkcipher_done(struct crypto4xx_device *dev,

static void crypto4xx_ablkcipher_done(struct crypto4xx_device *dev,

				     struct pd_uinfo *pd_uinfo,

				     struct ce_pd *pd)

{
@@ -543,11 +545,9 @@ static u32 crypto4xx_ablkcipher_done(struct crypto4xx_device *dev, 
	if (pd_uinfo->state & PD_ENTRY_BUSY)

		ablkcipher_request_complete(ablk_req, -EINPROGRESS);

	ablkcipher_request_complete(ablk_req, 0);



	return 0;

}



static u32 crypto4xx_ahash_done(struct crypto4xx_device *dev,

static void crypto4xx_ahash_done(struct crypto4xx_device *dev,

				struct pd_uinfo *pd_uinfo)

{

	struct crypto4xx_ctx *ctx;
@@ -563,20 +563,88 @@ static u32 crypto4xx_ahash_done(struct crypto4xx_device *dev, 
	if (pd_uinfo->state & PD_ENTRY_BUSY)

		ahash_request_complete(ahash_req, -EINPROGRESS);

	ahash_request_complete(ahash_req, 0);

}



	return 0;

static void crypto4xx_aead_done(struct crypto4xx_device *dev,

				struct pd_uinfo *pd_uinfo,

				struct ce_pd *pd)

{

	struct aead_request *aead_req;

	struct crypto4xx_ctx *ctx;

	struct scatterlist *dst = pd_uinfo->dest_va;

	int err = 0;



	aead_req = container_of(pd_uinfo->async_req, struct aead_request,

				base);

	ctx  = crypto_tfm_ctx(aead_req->base.tfm);



	if (pd_uinfo->using_sd) {

		crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo,

					  pd->pd_ctl_len.bf.pkt_len,

					  dst);

	} else {

		__dma_sync_page(sg_page(dst), dst->offset, dst->length,

				DMA_FROM_DEVICE);

	}



	if (pd_uinfo->sa_va->sa_command_0.bf.dir == DIR_OUTBOUND) {

		/* append icv at the end */

		size_t cp_len = crypto_aead_authsize(

			crypto_aead_reqtfm(aead_req));

		u32 icv[cp_len];



		crypto4xx_memcpy_from_le32(icv, pd_uinfo->sr_va->save_digest,

					   cp_len);



		scatterwalk_map_and_copy(icv, dst, aead_req->cryptlen,

					 cp_len, 1);

	}



static u32 crypto4xx_pd_done(struct crypto4xx_device *dev, u32 idx)

	crypto4xx_ret_sg_desc(dev, pd_uinfo);



	if (pd->pd_ctl.bf.status & 0xff) {

		if (pd->pd_ctl.bf.status & 0x1) {

			/* authentication error */

			err = -EBADMSG;

		} else {

			if (!__ratelimit(&dev->aead_ratelimit)) {

				if (pd->pd_ctl.bf.status & 2)

					pr_err("pad fail error\n");

				if (pd->pd_ctl.bf.status & 4)

					pr_err("seqnum fail\n");

				if (pd->pd_ctl.bf.status & 8)

					pr_err("error _notify\n");

				pr_err("aead return err status = 0x%02x\n",

					pd->pd_ctl.bf.status & 0xff);

				pr_err("pd pad_ctl = 0x%08x\n",

					pd->pd_ctl.bf.pd_pad_ctl);

			}

			err = -EINVAL;

		}

	}



	if (pd_uinfo->state & PD_ENTRY_BUSY)

		aead_request_complete(aead_req, -EINPROGRESS);



	aead_request_complete(aead_req, err);

}



static void crypto4xx_pd_done(struct crypto4xx_device *dev, u32 idx)

{

	struct ce_pd *pd = &dev->pdr[idx];

	struct pd_uinfo *pd_uinfo = &dev->pdr_uinfo[idx];



	if (crypto_tfm_alg_type(pd_uinfo->async_req->tfm) ==

			CRYPTO_ALG_TYPE_ABLKCIPHER)

		return crypto4xx_ablkcipher_done(dev, pd_uinfo, pd);

	else

		return crypto4xx_ahash_done(dev, pd_uinfo);

	switch (crypto_tfm_alg_type(pd_uinfo->async_req->tfm)) {

	case CRYPTO_ALG_TYPE_ABLKCIPHER:

		crypto4xx_ablkcipher_done(dev, pd_uinfo, pd);

		break;

	case CRYPTO_ALG_TYPE_AEAD:

		crypto4xx_aead_done(dev, pd_uinfo, pd);

		break;

	case CRYPTO_ALG_TYPE_AHASH:

		crypto4xx_ahash_done(dev, pd_uinfo);

		break;

	}

}



static void crypto4xx_stop_all(struct crypto4xx_core_device *core_dev)
@@ -612,8 +680,10 @@ int crypto4xx_build_pd(struct crypto_async_request *req, 
		       const unsigned int datalen,

		       const __le32 *iv, const u32 iv_len,

		       const struct dynamic_sa_ctl *req_sa,

		       const unsigned int sa_len)

		       const unsigned int sa_len,

		       const unsigned int assoclen)

{

	struct scatterlist _dst[2];

	struct crypto4xx_device *dev = ctx->dev;

	struct dynamic_sa_ctl *sa;

	struct ce_gd *gd;
@@ -627,18 +697,25 @@ int crypto4xx_build_pd(struct crypto_async_request *req, 
	unsigned int nbytes = datalen;

	size_t offset_to_sr_ptr;

	u32 gd_idx = 0;

	int tmp;

	bool is_busy;



	/* figure how many gd is needed */

	num_gd = sg_nents_for_len(src, datalen);

	if ((int)num_gd < 0) {

	/* figure how many gd are needed */

	tmp = sg_nents_for_len(src, assoclen + datalen);

	if (tmp < 0) {

		dev_err(dev->core_dev->device, "Invalid number of src SG.\n");

		return -EINVAL;

		return tmp;

	}

	if (tmp == 1)

		tmp = 0;

	num_gd = tmp;



	if (assoclen) {

		nbytes += assoclen;

		dst = scatterwalk_ffwd(_dst, dst, assoclen);

	}

	if (num_gd == 1)

		num_gd = 0;



	/* figure how many sd is needed */

	/* figure how many sd are needed */

	if (sg_is_last(dst)) {

		num_sd = 0;

	} else {
@@ -724,6 +801,7 @@ int crypto4xx_build_pd(struct crypto_async_request *req, 
	sa = pd_uinfo->sa_va;

	memcpy(sa, req_sa, sa_len * 4);



	sa->sa_command_1.bf.hash_crypto_offset = (assoclen >> 2);

	offset_to_sr_ptr = get_dynamic_sa_offset_state_ptr_field(sa);

	*(u32 *)((unsigned long)sa + offset_to_sr_ptr) = pd_uinfo->sr_pa;
@@ -830,7 +908,7 @@ int crypto4xx_build_pd(struct crypto_async_request *req, 
		((crypto_tfm_alg_type(req->tfm) == CRYPTO_ALG_TYPE_AHASH) |

		 (crypto_tfm_alg_type(req->tfm) == CRYPTO_ALG_TYPE_AEAD) ?

			PD_CTL_HASH_FINAL : 0);

	pd->pd_ctl_len.w = 0x00400000 | datalen;

	pd->pd_ctl_len.w = 0x00400000 | (assoclen + datalen);

	pd_uinfo->state = PD_ENTRY_INUSE | (is_busy ? PD_ENTRY_BUSY : 0);



	wmb();
@@ -843,38 +921,66 @@ int crypto4xx_build_pd(struct crypto_async_request *req, 
/**

 * Algorithm Registration Functions

 */

static int crypto4xx_alg_init(struct crypto_tfm *tfm)

static void crypto4xx_ctx_init(struct crypto4xx_alg *amcc_alg,

			       struct crypto4xx_ctx *ctx)

{

	struct crypto_alg *alg = tfm->__crt_alg;

	struct crypto4xx_alg *amcc_alg = crypto_alg_to_crypto4xx_alg(alg);

	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);



	ctx->dev = amcc_alg->dev;

	ctx->sa_in = NULL;

	ctx->sa_out = NULL;

	ctx->sa_len = 0;

}



	switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {

	default:

static int crypto4xx_ablk_init(struct crypto_tfm *tfm)

{

	struct crypto_alg *alg = tfm->__crt_alg;

	struct crypto4xx_alg *amcc_alg;

	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);



	amcc_alg = container_of(alg, struct crypto4xx_alg, alg.u.cipher);

	crypto4xx_ctx_init(amcc_alg, ctx);

	tfm->crt_ablkcipher.reqsize = sizeof(struct crypto4xx_ctx);

		break;

	case CRYPTO_ALG_TYPE_AHASH:

		crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),

					 sizeof(struct crypto4xx_ctx));

		break;

	return 0;

}



static void crypto4xx_common_exit(struct crypto4xx_ctx *ctx)

{

	crypto4xx_free_sa(ctx);

}



static void crypto4xx_ablk_exit(struct crypto_tfm *tfm)

{

	crypto4xx_common_exit(crypto_tfm_ctx(tfm));

}



static int crypto4xx_aead_init(struct crypto_aead *tfm)

{

	struct aead_alg *alg = crypto_aead_alg(tfm);

	struct crypto4xx_ctx *ctx = crypto_aead_ctx(tfm);

	struct crypto4xx_alg *amcc_alg;



	ctx->sw_cipher.aead = crypto_alloc_aead(alg->base.cra_name, 0,

						CRYPTO_ALG_NEED_FALLBACK |

						CRYPTO_ALG_ASYNC);

	if (IS_ERR(ctx->sw_cipher.aead))

		return PTR_ERR(ctx->sw_cipher.aead);



	amcc_alg = container_of(alg, struct crypto4xx_alg, alg.u.aead);

	crypto4xx_ctx_init(amcc_alg, ctx);

	crypto_aead_set_reqsize(tfm, sizeof(struct aead_request) +

				max(sizeof(struct crypto4xx_ctx), 32 +

				crypto_aead_reqsize(ctx->sw_cipher.aead)));

	return 0;

}



static void crypto4xx_alg_exit(struct crypto_tfm *tfm)

static void crypto4xx_aead_exit(struct crypto_aead *tfm)

{

	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);

	struct crypto4xx_ctx *ctx = crypto_aead_ctx(tfm);



	crypto4xx_free_sa(ctx);

	crypto4xx_common_exit(ctx);

	crypto_free_aead(ctx->sw_cipher.aead);

}



int crypto4xx_register_alg(struct crypto4xx_device *sec_dev,

static int crypto4xx_register_alg(struct crypto4xx_device *sec_dev,

				  struct crypto4xx_alg_common *crypto_alg,

				  int array_size)

{
@@ -891,6 +997,10 @@ int crypto4xx_register_alg(struct crypto4xx_device *sec_dev, 
		alg->dev = sec_dev;



		switch (alg->alg.type) {

		case CRYPTO_ALG_TYPE_AEAD:

			rc = crypto_register_aead(&alg->alg.u.aead);

			break;



		case CRYPTO_ALG_TYPE_AHASH:

			rc = crypto_register_ahash(&alg->alg.u.hash);

			break;
@@ -920,6 +1030,10 @@ static void crypto4xx_unregister_alg(struct crypto4xx_device *sec_dev) 
			crypto_unregister_ahash(&alg->alg.u.hash);

			break;



		case CRYPTO_ALG_TYPE_AEAD:

			crypto_unregister_aead(&alg->alg.u.aead);

			break;



		default:

			crypto_unregister_alg(&alg->alg.u.cipher);

		}
@@ -973,7 +1087,7 @@ static irqreturn_t crypto4xx_ce_interrupt_handler(int irq, void *data) 
/**

 * Supported Crypto Algorithms

 */

struct crypto4xx_alg_common crypto4xx_alg[] = {

static struct crypto4xx_alg_common crypto4xx_alg[] = {

	/* Crypto AES modes */

	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {

		.cra_name 	= "cbc(aes)",
@@ -985,8 +1099,8 @@ struct crypto4xx_alg_common crypto4xx_alg[] = { 
		.cra_blocksize 	= AES_BLOCK_SIZE,

		.cra_ctxsize 	= sizeof(struct crypto4xx_ctx),

		.cra_type 	= &crypto_ablkcipher_type,

		.cra_init	= crypto4xx_alg_init,

		.cra_exit	= crypto4xx_alg_exit,

		.cra_init	= crypto4xx_ablk_init,

		.cra_exit	= crypto4xx_ablk_exit,

		.cra_module 	= THIS_MODULE,

		.cra_u 		= {

			.ablkcipher = {
@@ -1009,8 +1123,8 @@ struct crypto4xx_alg_common crypto4xx_alg[] = { 
		.cra_blocksize	= AES_BLOCK_SIZE,

		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),

		.cra_type	= &crypto_ablkcipher_type,

		.cra_init	= crypto4xx_alg_init,

		.cra_exit	= crypto4xx_alg_exit,

		.cra_init	= crypto4xx_ablk_init,

		.cra_exit	= crypto4xx_ablk_exit,

		.cra_module	= THIS_MODULE,

		.cra_u		= {

			.ablkcipher = {
@@ -1033,8 +1147,8 @@ struct crypto4xx_alg_common crypto4xx_alg[] = { 
		.cra_blocksize	= AES_BLOCK_SIZE,

		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),

		.cra_type	= &crypto_ablkcipher_type,

		.cra_init	= crypto4xx_alg_init,

		.cra_exit	= crypto4xx_alg_exit,

		.cra_init	= crypto4xx_ablk_init,

		.cra_exit	= crypto4xx_ablk_exit,

		.cra_module	= THIS_MODULE,

		.cra_u		= {

			.ablkcipher = {
@@ -1059,8 +1173,8 @@ struct crypto4xx_alg_common crypto4xx_alg[] = { 
		.cra_blocksize	= AES_BLOCK_SIZE,

		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),

		.cra_type	= &crypto_ablkcipher_type,

		.cra_init	= crypto4xx_alg_init,

		.cra_exit	= crypto4xx_alg_exit,

		.cra_init	= crypto4xx_ablk_init,

		.cra_exit	= crypto4xx_ablk_exit,

		.cra_module	= THIS_MODULE,

		.cra_u		= {

			.ablkcipher = {
@@ -1082,8 +1196,8 @@ struct crypto4xx_alg_common crypto4xx_alg[] = { 
		.cra_blocksize	= AES_BLOCK_SIZE,

		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),

		.cra_type	= &crypto_ablkcipher_type,

		.cra_init	= crypto4xx_alg_init,

		.cra_exit	= crypto4xx_alg_exit,

		.cra_init	= crypto4xx_ablk_init,

		.cra_exit	= crypto4xx_ablk_exit,

		.cra_module	= THIS_MODULE,

		.cra_u		= {

			.ablkcipher = {
@@ -1149,6 +1263,7 @@ static int crypto4xx_probe(struct platform_device *ofdev) 
	core_dev->device = dev;

	spin_lock_init(&core_dev->lock);

	INIT_LIST_HEAD(&core_dev->dev->alg_list);

	ratelimit_default_init(&core_dev->dev->aead_ratelimit);

	rc = crypto4xx_build_pdr(core_dev->dev);

	if (rc)

		goto err_build_pdr;

drivers/crypto/amcc/crypto4xx_core.h

+9 −13
Original line number Diff line number Diff line
@@ -22,7 +22,9 @@ 
#ifndef __CRYPTO4XX_CORE_H__

#define __CRYPTO4XX_CORE_H__



#include <linux/ratelimit.h>

#include <crypto/internal/hash.h>

#include <crypto/internal/aead.h>

#include "crypto4xx_reg_def.h"

#include "crypto4xx_sa.h"
@@ -106,6 +108,7 @@ struct crypto4xx_device { 
	struct pd_uinfo *pdr_uinfo;

	struct list_head alg_list;	/* List of algorithm supported

					by this device */

	struct ratelimit_state aead_ratelimit;

};



struct crypto4xx_core_device {
@@ -125,6 +128,9 @@ struct crypto4xx_ctx { 
	struct dynamic_sa_ctl *sa_out;

	__le32 iv_nonce;

	u32 sa_len;

	union {

		struct crypto_aead *aead;

	} sw_cipher;

};



struct crypto4xx_alg_common {
@@ -132,6 +138,7 @@ struct crypto4xx_alg_common { 
	union {

		struct crypto_alg cipher;

		struct ahash_alg hash;

		struct aead_alg aead;

	} u;

};
@@ -141,18 +148,6 @@ struct crypto4xx_alg { 
	struct crypto4xx_device *dev;

};



static inline struct crypto4xx_alg *crypto_alg_to_crypto4xx_alg(

	struct crypto_alg *x)

{

	switch (x->cra_flags & CRYPTO_ALG_TYPE_MASK) {

	case CRYPTO_ALG_TYPE_AHASH:

		return container_of(__crypto_ahash_alg(x),

				    struct crypto4xx_alg, alg.u.hash);

	}



	return container_of(x, struct crypto4xx_alg, alg.u.cipher);

}



int crypto4xx_alloc_sa(struct crypto4xx_ctx *ctx, u32 size);

void crypto4xx_free_sa(struct crypto4xx_ctx *ctx);

void crypto4xx_free_ctx(struct crypto4xx_ctx *ctx);
@@ -163,7 +158,8 @@ int crypto4xx_build_pd(struct crypto_async_request *req, 
		       const unsigned int datalen,

		       const __le32 *iv, const u32 iv_len,

		       const struct dynamic_sa_ctl *sa,

		       const unsigned int sa_len);

		       const unsigned int sa_len,

		       const unsigned int assoclen);

int crypto4xx_setkey_aes_cbc(struct crypto_ablkcipher *cipher,

			     const u8 *key, unsigned int keylen);

int crypto4xx_setkey_aes_cfb(struct crypto_ablkcipher *cipher,

drivers/crypto/amcc/crypto4xx_sa.h

+41 −0
Original line number Diff line number Diff line
@@ -55,6 +55,8 @@ union dynamic_sa_contents { 
#define SA_OP_GROUP_BASIC			0

#define SA_OPCODE_ENCRYPT			0

#define SA_OPCODE_DECRYPT			0

#define SA_OPCODE_ENCRYPT_HASH			1

#define SA_OPCODE_HASH_DECRYPT			1

#define SA_OPCODE_HASH				3

#define SA_CIPHER_ALG_DES			0

#define SA_CIPHER_ALG_3DES			1
@@ -65,6 +67,8 @@ union dynamic_sa_contents { 


#define SA_HASH_ALG_MD5				0

#define SA_HASH_ALG_SHA1			1

#define SA_HASH_ALG_GHASH			12

#define SA_HASH_ALG_CBC_MAC			14

#define SA_HASH_ALG_NULL			15

#define SA_HASH_ALG_SHA1_DIGEST_SIZE		20
@@ -233,6 +237,36 @@ struct dynamic_sa_aes256 { 
#define SA_AES256_CONTENTS	0x3e000082

#define SA_AES_CONTENTS		0x3e000002



/**

 * Security Association (SA) for AES128 CCM

 */

struct dynamic_sa_aes128_ccm {

	struct dynamic_sa_ctl ctrl;

	__le32 key[4];

	__le32 iv[4];

	u32 state_ptr;

	u32 reserved;

} __packed;

#define SA_AES128_CCM_LEN	(sizeof(struct dynamic_sa_aes128_ccm)/4)

#define SA_AES128_CCM_CONTENTS	0x3e000042

#define SA_AES_CCM_CONTENTS	0x3e000002



/**

 * Security Association (SA) for AES128_GCM

 */

struct dynamic_sa_aes128_gcm {

	struct dynamic_sa_ctl ctrl;

	__le32 key[4];

	__le32 inner_digest[4];

	__le32 iv[4];

	u32 state_ptr;

	u32 reserved;

} __packed;



#define SA_AES128_GCM_LEN	(sizeof(struct dynamic_sa_aes128_gcm)/4)

#define SA_AES128_GCM_CONTENTS	0x3e000442

#define SA_AES_GCM_CONTENTS	0x3e000402



/**

 * Security Association (SA) for HASH160: HMAC-SHA1

 */
@@ -274,4 +308,11 @@ static inline __le32 *get_dynamic_sa_key_field(struct dynamic_sa_ctl *cts) 
	return (__le32 *) ((unsigned long)cts + sizeof(struct dynamic_sa_ctl));

}



static inline __le32 *get_dynamic_sa_inner_digest(struct dynamic_sa_ctl *cts)

{

	return (__le32 *) ((unsigned long)cts +

		sizeof(struct dynamic_sa_ctl) +

		cts->sa_contents.bf.key_size * 4);

}



#endif